Denial of Service Vulnerability in IBM Db2 for Linux, UNIX, and Windows
CVE-2026-1577

6.5MEDIUM

Key Information:

Vendor

IBM
Status
Db2
Vendor
CVE Published:
30 April 2026

What is CVE-2026-1577?

IBM Db2 versions 11.5.0 to 11.5.9 and 12.1.0 to 12.1.4 across Linux, UNIX, and Windows platforms, including Db2 Connect Server, are vulnerable due to improper handling of certain elements in data query logic. An authenticated user could exploit this flaw to induce a denial of service, potentially disrupting the availability of the database services.

Affected Version(s)

Db2 11.5.0 <= 11.5.9

Db2 12.1.0 <= 12.1.4

References

https://www.ibm.com/support/pages/node/7269434
vendor-advisorypatch

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.